Coincidental lock



Feb. 4, 1930. w. J. DAvlDsoN Er Al. v 1,746,214

COINCIDENTAL LOCK Filed Sept. 17, '1927 j M Z ,Z A @WK Suomqf Patented' Feh. 4, `T293@ 'WILLIAN J'. DAVIDSON, OiE DETROIT,AND LLOYD BLACKMORE, 0F HIGHLAND P MICHIGAN, ASSIGNORS T GENERAL MOTORS CORPORATION, OF. DETROIT, MIOH.- v

i GAN, A CORPORATIONl OF DELAWARE Application led ASeptember 17, 192'?, Serial No. 220,249.

The present invention relates to a combination ignition, lighting switch and transmission lock for an automotive vehicle.

It isan object of the present invention to provide a single `lock operating means for a plurality of locks on. an automotive vehicle.

While a separate lock may be provided onv any number of moving parts of an automobile, the confusionl resulting from the use of several keys renders this objectionable. lt is an object of the present invention to provide an ignition lock which `can be connected with a locking means for any part of the vehicle to render that part inoperative. ln the present case we have shown our ignition lock connected with the lighting switch and transl, mission lock, with modications showing a connection with the intake riser and with the distributor shaft. However, the locking device we have disclosed below is not restricted to a combinationA with any particular lock but can beused with a lock on any vital part of the machine which is capable of being locked to render the machine incapable of operation. c

It is an important feature of the invention v to provide such a lock, operated by the ignition key, which permits of the operation of the ignition key at any time, regardless of whether the parts are in position to beflocked and which will automatically come into operation when the" parts move into a position in which they may be locked,

Other objects and advantages of the invention will appear inthe course of the following description, taken in connection with the accompanying drawing. f

ln the drawing:

Figure l is a vertical longitudinal [section of the improved locking device.V Figure-1 a vis a continuation of Figure 1,-showing the connection of the locking-means with the transmission `Figure 2 is a'utransverse vsection taken on the line 2-2 of Figure 1,the parts being shown in lfocked position. n

Figures 3 and are sections on the line 3-3 of Figure l, showing the parts unlocked in Figure tand locked in Figure 3.' Figure 5 is a. In'odiiication showing the lock connected with riser leading to the intake manifold.

Figure 6. illustrates another modificationv with the lock mounted in conjunctionl with the distributor.

Referring to the drawing, the numeral 16 indicates the cup-shaped lock casing which is mounted in the'usual way on the dashboard. The numeral 14 indicates the usual'face or cover plate fixed to the lock casing. in the @u upper part of the casing is the lighting switch and in the lower part the locking mechanism and ignition switch.

The lighting switch comprises acup-shaped case16 fixed within the lock casing. 'En the 35 rear part of this case are the terminals 20 of the lighting wires. On the cover plate is the usual switch 22 provided-at its rear end with a contact plate 24 adapted to establish Contact with the terminals 20. The switch 7o just" described is of the usual construction, the only variation being that it is provided on the face of the contact plate 24; with arc shaped locking lugs 26. Two of these lugs 26 are provided, slightly spaced from each 75 otherito permit the pin 40, described helow, to pass therebetween.

The lock is of the ordinary barrel type and comprises the outer non-rotatable cylindrical shell 28, xed to the cover plate 14, and the se inner rotatable core 30 which extends rear` ward beyond the endof the shell. Extending-longitudinally of the core is a key way for the key 432. ln the "lower part of the barrel 28 are the 'usual locking pins. Each locking pin comprises an upper part 3 and a lower part 36` the shell and core being bored` radially for permitting a limited reciprocation of the two parts in unison. A coil spring 38 normally holds the two parts raised so that the lower part 36 extends within both the shell 28 and core 30 and prevents relative rotation. The parts Aare so arranged that tion of `the core is thus'permitted as well understood in locksfof this type. w@

.In the upper part of the lock are the pins 40 and 41. The pin 40 extends from the lower part of the switch case 16 to the lower part of the shell 28. Fixed to the pin 40 is a washer 42 and surrounding the pin 40 between the case 16 and washer 42 is a compressed coil Vspring 44. In the upper part of the pin 40 is a slot 46. In the position illustrated,.the slot 46 registers with the arcshaped locking lugs 26 and permits rotation of the switch 22. When the key is withdrawn the pin 40 moves downward a limited distance and its upper end extends between the locking lugs 26 and holds the switch locked in closed position. The small -supplemental pin 41 extends between the pin 40 and the key 32.

Fixedly mounted on the rear end of the core 30 is the switch arm 48 adapted to establish contact between the terminals in the ignition system. Loosely mounted on the core 30 and held thereon by the switch arm 48'is the lock operating arm 52. This arm is provided with an arcuate slot 53 into which there extends a suitably shaped .finger 51 preferably formed integral with the switch arm 48. The slot 53 is larger than the finger p 51 to allow for a lost motion connection between the two. lWhen the linger reaches either end of the slot it will carry along or swing the arm 52 therewith. Mounted on the arm'52 is a spring res'sed pawl 54 provided with an aperture a apted to fit over theend of a pin 56. The pin 56 is provided at its lower end with a head-and is surrounded by asmall coil spring 58 tending to move it downward. When the key is removed the pin 56 is moved downward by the coil spring 58 so that its outer end coincides with the surface of the shell 28. Between the pin 56 and the key is the supplemental pin 57.

The transmission illustrated in Figure 2 is of standard construction. cated the usual shifter rails adapted to be reciprocated to change gear. The parts are shown in neutral in Figure 2. In the casting 61'between the two rails 60 is a T-shaped slot.

62 in which a plunger 64 is adapted to slide. The rails 60 are provided with opposed grooves in which balls 66 are adapted to fit.

p A flexible steel wire 68 is connected at the When the plunger is withdrawn. (to the leftl asviewed in Figure 2,) the balls 66 are'free to move toward each other and permit the rails to be moved longitudinally.

The operation of our device is as follows:

i With the parts in locked position, as shown At 60 are indi.

tends through the barrel 28, and the pins 34 and 36 are moved downward so that rotation of the core within the shell is permitted. The function of the pins`41 and 57 is the same as that of the pins 3,4. When the key is turned, a part of a revolution the switch48 establishes a connection between the terminals 50 in the ignition system and moves the arm 52to' the position illustrated in Figure 4. Themovement of the arm 52 is transmitted through the wire 68 to withdraw the plunger 64 and the balls 66 may then roll freely crossways of the slot so that the transmission rails can be freely moved. During the counter clockwise movement of the arm 52 above mentioned the spring pressed pawl 54 moves around andI snaps over the pin 56. With the parts in this position the key 32 may be vturned back to dlsconnect the ignition ter- 56 and 57 to move inward to release the pawl'-l 54 so that it may be pulled around by the wire 68 at any time the rails 60 are moved to neutral position. After the key is withdrawn, if the switch 22 is moved to oil position,

the spring 44 forces the pin 40 down and the lighting switch is locked; likewise when the shifter rails are moved to neutral position the spring 70 forces the plunger -in between the balls 66 and forces the balls into their respective slots in the rails, thus locking the transmission. The locking plunger and ball arrangement shown in Figure 2 may be connected at either'end of the rails 60 or to the slotted gear shift castings 61, or at any other suitable place in the gear shift mechanism, depending on its specific construction.

Our invention is capable of being used in manyconnections andthevariouspartsmaybe encased or armoured7 as desired. The light switch may be locked or unlocked by the insertion alone of the key and this is true whether the key operates the ignition switch alone, the transmissionlock alone, or what not. The combination of locks is of much utility in conjunction with the one locking key and in this connection it must be understood,v` the wire 68 though shown and dei andere scribed as connected to a pin for locking the shifter-rails may be used for locking or moving any distant part such as a valve in the intake manifold or a switch or part of the distributor for controlling the engine operation. v

In Figure 5 we have illustrated the flexible wire 68 connected with an `arm 8O mounted on y fold. When the key is turned the wire moves the arm 80 to the left, as illustrated, and the damper 82 is moved to the dotted line position to permit the passage of air through the tor.

riser.

In Figure 6 there is illustrated the lflexible wire 68 connected with a bell crank lever 90 pivoted at 92 in thesupport for the distribu- 'The lower arm 94 of the bell crankis bifurcated and extends into the channel of larged lower the annular member 96 fixed to the driving shaft 98. The shaft 98 is provided with a single lug adapted to fit in a slot on the enpart of the shaft 1 00 extending down from the distributor head. The shaft 100 is permitted limited vertical movement. The usual coil spring 104 surrounds the wire 68 in the casing below the distributor and tends to rotate the bell crank lever clockwise, as illustrated to hold the parts disconnected. When the key is turned to rotate the bell crank lever counter-clockwise, the slotted upper end'of the shaft 98` is moved upward,

f and with it theshaft 100. When the lug 97 Ivehicles, a manually operable ignition switch fits into the slot 99, the driving connection between shafts 98 and 100 is established.

l/Ve claim:

l. ln a coincidental lock for automotive and a means for locking a movable part' of the vehicle, a member projecting from said lock to rigidly hold said switch from manual operation, and means on said lock having a lost motion connection for controlling said movable part.

2. ln a coincidentallock for automotive vehicles, an electric switch and a means for looking a movable part of the vehicle, a locking barrel, a pin projecting away from s aid barrel and having ya slotted end adapted to lock said switch, means on said switch to engage said pin during the locking and to conform to said slot when unlocked, and means on said lock having a lost motion connection j for locking said movable part.

3. In a coincidental lock for automotive vehicles, a manually operableignition switch and a movable part of the vehicle adapted to be locked by said lock, means controlled by said lockifor locking said switch, an arm on said lock, and means operatively connected 1 to said arm for locking said movable part.

4. 'In a `coincidental lock for automotive vehicles, an electric switch and a movable part of the vehicle controlled by said lock, a pin having a slotted end operated from lsaid lock, means on said switch to engage in said slot or adapted to engage the pin to hold said switch in unlocked or locked position, an arm rigidly secured to the lock, a second armoperated through a lost motion connection by said first named arm, a second pin projecting from and operated by said lock, vand means on said second arm adapted to engage said second pin when the lock is operated to hold Athe parts in locked relation. 4

5. The combination of claim 4, said `last named means comprising a pawl.

6. The combination oficlaim 4, said last namedmeans comprising a spring pressed pawl having an opening engaging over said second pin.

7. ln a coincidental lock for automotive vehicles, a manually operable ignition switch and a means for locking a mova le part of the vehicle, a pin projecting from and operated 1 by said lock to rigidly hold said switch from `manual operation and means on said lock 9. In acoincidental lock for automotive I vehicles, a manually operable ignition switch and a means for locking a movable part of the vehicle, a slotted pin projecting from said lock to rigidly hold said switch from manual operation, a projecting element on said switch, the slotted portion of said pin conforming to said element when the parts are in unlocked position, and means on said lock having a lost motion connection for controlling said movable part. i

l0. lin a coincidental lock for automotive vehicles, a manually operable ignition switch and a means for locking a movable part of the vehicle, a slotted pin projecting from said llock to rigidly hold said switch from manual operation. a projecting element Onsaid switch, said element ,being out of the path of said slot when the parts are in locked position.- and means on said lock having a lost motion connection for controlling said movable part.

11. -In a coincidental lock 'for automotive vehicles, a manually operable ignition switch and a movable part ofthe vehicle` adapted to be locked by saidllock, means controlled by said lock Jfor locking said switch, an arm on said lock, and means operatively connected to said arm for locking said movable part, said last named means including a. second arm having a lost motion connection with'said be locked by said lock. means controlled by said'lockv for locking said switch, an arm on said lock, means operatively connected to said arm for locking said movable part, said last named means including a freely mounted lock element operated by said` arm, and means means operated by the lock and projecting therefrom, and meanson said element adapted to engage over said lock operated means to hold the parts in locked` relation.

In testimony lwhereof we aiiix our signatures. l WILLIAM J. DAVIDSON.

LLOYD ABLACKMORE.

on said element to engage the lock to hold the parts in locked position.

14. In a coincidental lock for automotive 4 vehicles, a manually operable ignition switch ,v zand a movable part of the vehicle adapted to be locked by said lock, means controlled by said lock for lpcking said switch, an'arm on said lock, means operatively connected to said arm'ffor locking said movable part, saidlast named means incl-udine a freely mounted lock elemen-t operated by said arm, a pin operated by the lock` and means on said element to engage said relation.

pin to hold the parts in locked 15. Inav coincidental( lock for automotive vehicles, a manually operable ignition switch and a movable art of the vehicle adapted to be locked by sald loclr` meanscontroll-ed by said lock for locking'said switch, an armv on g said lock, means .operativelyconnected to said arm for locking said'movable part, said last named means including an element lfreely mounted on said lock and operated by said arm, a pin projecting through the lock barrela'nd operated by the lock, and means] on said element'for engaging the pin to hold'the parts in lockedrela'tion.' v

i In a coincidental lock foreautoinotive' vehicles, amanually operable ignition `,switch and a movable part of the vehicle adapted to ,be-locked by said lock, means 'cont-.rolled by 4 said lock for locking said switch, an ar'm on v said lock, meansoperatively connected to said 'l l arm for locking-said-movable part, said last namedv means including an element freely` mounted on-saidlock and operated lfrom'said'- arm Aby means of a pin 'and Slot connection, 'A 

